I have a problem with my webvisu.
I'm using CoDeSys 220.127.116.11 with a Kontron CU (Runtime 18.104.22.168)
I loaded my program and everything is working fine. After a short time (10-30min) my Webvisu is freezing and I can't reconnect. It looks like that my Webserver is crashing and not starting again.
Inside the codesys visualisation everything is working fine. So I have no exception...
I tried to check the log file but I have a problem there (may this could be the root of the problem). I tested my software without the IO's which are connected usually via CAN-BUS.
Because I haven't connected the CAN-Devices my log-file is flooded with log messages from my CAN-BUS (every 10ms)
Could this log-File cause such a problem? At the moment I excluded the CAN-Devices from my program and it seems that the freeze will not happen any more.
Have anyone similar problems?
I also increased the Buffer size and the update rate without success (like mentioned in an other post).
Would be nice if someone have a solution for me :-)
I am not aware of any issue.
Could it be that the CAN-BUS is a high priority task and writing to the log results in a lot of IO actions which reduce the speed and the WebServer task simply is not running?
I am not an expert at all with CAN-Devices.
@eschwellinger @i-campbell do you guys have any idea?
not really, but need probably to be investigated on this device, due other devices do not have this problem. (Would ask Kontron to help to do this)
Hi Marcel, Hi Mr. Schwellinger,
thank you for your fast response.
I have no influence on the priority of the CAN-BUS-task if I'm right...
As I described I excluded the CAN-Devices from the build and then everything was fine. Now I included it again and the logs came back (of course). But the Webvisu is still running without problems?!
I did not change anything else... reset origin etc. I tried before as well. So I can't find a reason for that behaviour.
I will ask Kontron also if they know this problem.
Is there a way to restart the webserver manually if this happens again? In past I did then a online change or a Download and then it starts again...but on costumers side this will not allways be possible.
No there is no public interface to restart the webserver right now..
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